79-596: Rim Rock Drive is a scenic road in Colorado National Monument . The 23-mile (37 km) drive follows the upper rim of a series of canyons, extending from the vicinity of Fruita, Colorado , in the west to near Grand Junction, Colorado , in the east, connecting points only 8 miles (13 km) miles apart in a straight line. The entire road has been designated a historic district on the National Register of Historic Places . The routing of
158-764: A "permanent pipeline". Ecologically, Colorado National Monument sits on a large area of high desert in Western Colorado, though under the Köppen climate classification , it, like neighbouring Grand Junction, is temperate semi-arid . Summers are hot and dry while winters cold with some snow. Temperatures reach 100 °F (38 °C) on 6.0 days, 90 °F (32 °C) on 62.3 days, and remain at or below freezing on 12.9 days annually. The Monument contains many hiking trails, with lengths and difficulties to suit all tastes. Summer storms can cause flash floods as well as dangerous trail conditions. Rattlesnakes are found on
237-590: A beautiful view of the Grand Valley. Corkscrew Trail, closed for many years but reopened in mid-2006, branches off the Liberty Cap and skirts a small canyon and cliffs that cannot be seen from the valley floor. This trail, the only loop trail on the Monument, is about 3 miles long and features a less rigorous climb than Liberty Cap. Monument Canyon trail follows Monument Canyon for about 5 miles. This trail
316-523: A code of ethics which prohibits its members from deliberately crossbreeding bison with any other species. Population estimates in 2010 ranged from 400,000 to 500,000, with approximately 20,500 animals in 62 conservation herds and the remainder in approximately 6,400 commercial herds. According to the IUCN , roughly 15,000 bison are considered wild, free-range bison not primarily confined by fencing. The Nature Conservancy (TNC) has reintroduced bison to over
395-552: A dozen nature preserves around the United States. In October 2016, TNC established its easternmost bison herd in the country, at Kankakee Sands nature preserve in Morocco , Newton County, Indiana . In 2014, U.S. Tribes and Canadian First Nations signed a treaty to help with the restoration of bison, the first to be signed in nearly 150 years. American bison live in river valleys, and on prairies and plains. Typical habitat
474-496: A few miles into the canyon, and up-and-back hiking is required. Some hikers have found a way to get through the entire canyon, but after a certain point the trail becomes difficult and unmarked. No Thoroughfare Canyon does have small waterfalls during the spring runoff, but is dry for most of the year. Colorado National Monument was rated in 2017 as the best campsite in Colorado in a 50-state survey conducted by Msn.com . Many of
553-475: A few older males. During the breeding season, dominant bulls maintain a small harem of females for mating. Individual bulls "tend" cows until allowed to mate, by following them around and chasing away rival males. The tending bull shields the female's vision with his body so she will not see any other challenging males. A challenging bull may bellow or roar to get a female's attention, and the tending bull has to bellow or roar back. The most dominant bulls mate in
632-431: A new location to graze again. Sexually mature young bulls may try to start mating with cows by the age of two or three years, but if more mature bulls are present, they may not be able to compete until they reach five years of age. For the first two months of life, calves are lighter in color than mature bison. One extremely rare condition is the white buffalo , in which the calf turns entirely white. Bison are members of
711-521: A number of physical and behavioral differences. Adult American bison are slightly heavier on average because of their less rangy build and have shorter legs, which render them slightly shorter at the shoulder. American bison tend to graze more and browse less than their European relatives because their necks are set differently. Compared to the nose of the American bison, that of the European species
790-539: A practice of pleistocene rewilding ; wood bison are the most similar to the extinct steppe bison species ( Bison priscus ). The bison are adapting well to the cold climate, and Yakutia's Red List officially registered the species in 2019; a second herd was formed in 2020. In Pleistocene Park , there are also 24 plains bison as wood bison could not be acquired. Bison are migratory and herd migrations can be directional as well as altitudinal in some areas. Bison have usual daily movements between foraging sites during
869-417: A predation episode varies, ranging from a few minutes to over nine hours. Bison display five apparent defense strategies in protecting calves from wolves: running to a cow; running to a herd; running to the nearest bull; running in the front or center of a stampeding herd; entering water bodies, such as lakes or rivers. When fleeing wolves in open areas, cows with young calves take the lead, while bulls take to
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#1732787832575948-575: A single generic word covering both sexes. Thus: Such a distinction is not a general feature of the language (for example, Arapaho possesses gender-neutral terms for other large mammals such as elk, mule deer, etc.), and so presumably is due to the special significance of the bison in Plains Indian life and culture. A bison has a shaggy, long, dark-brown winter coat, and a lighter-weight, lighter-brown summer coat. Male bison are significantly larger and heavier than females. Plains bison are often in
1027-637: A threat to calves and sometimes old, injured, or sick adult bison, direct killing of non-calves is rare even when targeting lone and injured young individuals; attacking healthy bison is risky for bears, who can be killed instead. Bison are among the most dangerous animals encountered by visitors to the various North American national parks and will attack humans if provoked. They appear slow because of their lethargic movements but can easily outrun humans; bison have been observed running as fast as 65 to 70 km/h (40 to 45 mph). Bison may approach people for curiosity. Close encounters, including to touch
1106-556: A visitor center on the west side contains a natural history museum and gift shop. There are scenic views from trails, Rim Rock Drive , which winds along the plateau, and the campground. Nearby are the Book Cliffs and the largest flat-topped mountain in the world, the Grand Mesa . The monument's feature attraction is Monument Canyon , which runs the width of the park and includes rock formations such as Independence Monument ,
1185-567: Is a National Park Service unit near the city of Grand Junction, Colorado . Sheer-walled canyons cut deep into sandstone and granite–gneiss–schist rock formations. This is an area of desert land high on the Colorado Plateau , with pinyon and juniper forests on the plateau. The park hosts a wide range of wildlife, including red-tailed hawks, golden eagles, ravens , jays , desert bighorn sheep , and coyotes . Activities include hiking, horseback riding, road bicycling, and scenic drives;
1264-960: Is a National Historic District, as well as the Serpents Trail , the Devils Kitchen Picnic Shelter , and three places in the Saddlehorn area: the Saddlehorn Caretaker's House and Garage , Saddlehorn Comfort Station , and the Saddlehorn Utility Area Historic District . The Visitor Center complex is also included as an example of the Mission 66 program. The park's geologic record preserves three different groups of rock and sediment. The oldest rocks are Early to Middle Proterozoic gneiss and schist , including
1343-451: Is classified by the United States government as a type of cattle, and the government allows private herds to be managed as such. This is a reflection of the characteristics that bison share with cattle. Though the American bison is a separate species and usually regarded as being in a separate genus from domestic cattle ( Bos taurus ), they have a lot of genetic compatibility with cattle. American bison can interbreed with cattle, although only
1422-401: Is completely unreliable as a means of determining what is a purebred bison and what is a crossbred cow. Many ranchers have deliberately crossbred their cattle with bison, and some natural hybridization could be expected in areas where cattle and bison occur in the same range. Since cattle and bison eat similar food and tolerate similar conditions, they have often been in the same range together in
1501-777: Is not known if the Book Cliffs extension of the herd is also free of cattle hybridization. A separate study by Wilson and Strobeck, published in Genome , was done to define the relationships between different herds of bison in the United States and Canada, and to determine whether the bison at Wood Buffalo National Park in Canada and the Yellowstone Park bison herd were possibly separate subspecies. The Wood Buffalo Park bison were determined to actually be crossbreeds between plains and wood bison, but their predominant genetic makeup
1580-517: Is often hiked up-and-back, and provides close-up views of Independence Monument, the Colorado National Monument's most distinct feature, as well as a formation named Kissing Couple. The lower trailhead is accessible from CO 340 (Broadway). No Thoroughfare Trail starts at the bottom of No Thoroughfare Canyon, near the east entrance. As the name implies, there is no official trail to the top of this canyon. The dead-end trail goes
1659-483: Is open or semiopen grasslands, as well as sagebrush, semiarid lands, and scrublands. Some lightly wooded areas are also known historically to have supported bison. Bison also graze in hilly or mountainous areas where the slopes are not steep. Though not particularly known as high-altitude animals, bison in the Yellowstone Park bison herd are frequently found at elevations above 2,400 m (8,000 ft), and
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#17327878325751738-462: Is set farther forward than the forehead when the neck is in a neutral position. The body of the American bison is hairier, though its tail has less hair than that of the European bison. The horns of the European bison point forward through the plane of its face, making it more adept at fighting through the interlocking of horns in the same manner as domestic cattle, unlike the American bison, which favors charging. American bison are more easily tamed than
1817-642: Is suggested to be the result of either incomplete lineage sorting or ancient introgression . Bison first appeared in Asia during the Early Pleistocene , around 2.6 million years ago. Bison only arrived in North America 195,000 to 135,000 years ago, during the late Middle Pleistocene , descending from the widespread Siberian steppe bison ( Bison priscus ), which had migrated through Beringia . Following their first appearance in North America,
1896-489: The Catawba River as late as 1750. Two subspecies or ecotypes have been described: the plains bison ( B. b. bison ), smaller and with a more rounded hump; and the wood bison ( B. b. athabascae ), the larger of the two and having a taller, square hump. Furthermore, the plains bison has been suggested to consist of a northern plains ( B. b. montanae ) and a southern plains ( B. b. bison ) subspecies, bringing
1975-814: The Cumberland Gap through the Blue Ridge Mountains to upper Kentucky . A heavily used trace crossed the Ohio River at the Falls of the Ohio and ran west, crossing the Wabash River near Vincennes, Indiana . In Senator Thomas Hart Benton 's phrase saluting these sagacious path-makers, the bison paved the way for the railroads to the Pacific. The southern extent of the historic range of
2054-736: The European bison . Its historical range circa 9000 BC is referred to as the great bison belt , a tract of rich grassland spanning from Alaska south to the Gulf of Mexico , and east to the Atlantic Seaboard (nearly to the Atlantic tidewater in some areas), as far north as New York , south to Georgia , and according to some sources, further south to northern Florida , with sightings in North Carolina near Buffalo Ford on
2133-881: The Henry Mountains bison herd is found on the plains around the Henry Mountains , Utah, as well as in mountain valleys of the Henry Mountains to an altitude of 3,000 m (10,000 ft). Reintroduced plains bison in Banff National Park have been observed to roam mountainous areas, including high ridges and steep drainages, and archaeological finds indicate that some bison historically may have spent their lives within mountains while others may have migrated in and out of mountains. Those in Yukon, Canada, typically summer in alpine plateaus above treeline. The first thoroughfares of North America, except for
2212-702: The Janos Biosphere Reserve in northern Chihuahua adding to the Mexican bison population. In 2020, the second herd was formed in Maderas del Carmen . A private reserve named Jagüey de Ferniza has kept bisons since before the above-mentioned reintroductions in Coahuila. Since 2006, an outherd of wood bison sent from Alberta's Elk Island National Park was established in Yakutia , Russia as
2291-614: The Kissing Couple , and Coke Ovens . The monument includes 20,500 acres (32.0 sq mi; 83 km ), much of which has been recommended to Congress for designation as wilderness. Interactive map of the Colorado National Monument The area was first explored by John Otto , who settled in Grand Junction in the early 20th century. Prior to Otto's arrival, many area residents believed
2370-624: The Works Progress Administration , Public Works Administration , and Civilian Conservation Corps , and represents one of the most significant Depression-era public projects. Extensive drilling and blasting was required, and three tunnels were bored. Work was suspended by the Second World War from 1942 to 1948, and was finally completed in 1950. At its height, the project employed more than 800 men. Colorado National Monument Colorado National Monument
2449-611: The 1870s, which caused the plains bison population to undergo a population bottleneck . The bottleneck resulted in a founding population of around 100 individuals, split into six herds, five of which were managed by private ranchers and one managed by the New York Zoological Park (now the Bronx Zoo ). Additionally, a wild herd consisting of 25 individuals in Yellowstone National Park survived
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2528-595: The 1980s partly due to its inclusion as a stage of the major international bicycle race, the Coors Classic . The race through the park became known as "The Tour of the Moon", due to the spectacular landscapes the race passed through on Rim Rock Drive. The issue of national park status has arisen time and again, usually during bust cycles brought on by the uranium industry and later oil and gas. As of June, 2014 Congressman Scott Tipton and Senator Mark Udall have carried
2607-511: The 19th century and introduction of bovine diseases from domestic cattle. With an estimated population of 60 million in the late 18th century, the species was culled down to just 541 animals by 1889 as part of the subjugation of the Native Americans, because the American bison was a major resource for their traditional way of life (food source, hides for clothing and shelter, and horns and bones for tools). Recovery efforts expanded in
2686-438: The 2020 Bison Conservation Initiative on May 7, 2020. This initiative focuses on maintaining the genetic diversity of the metapopulation rather than individual herds. Small populations of bison are at considerably larger risk due to their decreased gene pool and are susceptible to catastrophic events more so than larger herds. The 2020 Bison Conservation Initiative aims to translocate up to three bison every five to ten years between
2765-478: The American bison includes northern Mexico and adjoining areas in the United States as documented by archeological records and historical accounts from Mexican archives from 700 CE to the 19th century. The Janos-Hidalgo bison herd has ranged between Chihuahua, Mexico, and New Mexico, United States, since at least the 1920s. The persistence of this herd suggests that habitat for bison is suitable in northern Mexico. In 2009, genetically pure bison were reintroduced to
2844-542: The American bison. It is the national mammal of the United States . In American English, both buffalo and bison are considered correct terms for the American bison. However, in British English, the word buffalo is reserved for the African buffalo and water buffalo and not used for the bison. In English usage, the term buffalo was used to refer to the American mammal as early as 1625. The word bison
2923-545: The Department of the Interior's herds. Specific smaller herds will require a more intense management plan. Translocated bison will also be screened for any health defects such as infection of brucellosis bacteria as to not put the larger herd at risk. Bison went from numbering an estimated 60 million individuals before the 1870s to becoming nearly extinct in the 1880s. This was due to the mass slaughtering of bison during
3002-605: The European and breed more readily with domestic cattle. During the population bottleneck, after the great slaughter of American bison during the 19th century, the number of bison remaining alive in North America declined to as low as 541. During that period, a handful of ranchers gathered remnants of the existing herds to save the species from extinction. These ranchers bred some of the bison with cattle in an effort to produce "cattalo" or " beefalo ". Accidental crossings were also known to occur. Generally, male domestic bulls were crossed with bison cows, producing offspring of which only
3081-403: The Monument itself and the Grand Valley below. One of the shortest trails, also popular, is Devil's Kitchen. The trailhead is located near the eastern entrance of the park on Rim Rock Drive. This trail is about 1 mile long, and ends in a sandstone grotto. Liberty Cap trail starts from the valley floor and climbs to the rim of the Monument. Liberty Cap itself is an ancient sand dune , and provides
3160-486: The Monument, and rough terrain exists everywhere, but most trails are well-maintained. Winter cross-country skiing is occasionally possible on trails such as the Liberty Cap Trail. Serpents Trail, perhaps the most popular, follows the route of the original road to the top of the Monument. This trail is accessible by parking lots at both ends, both located off Rim Rock Drive. Serpents Trail provides views of both
3239-542: The Redlands Thrust Fault. American bison B. b. athabascae (wood bison) B. b. bison (plains bison) The American bison ( Bison bison ; pl. : bison ), commonly known as the American buffalo , or simply buffalo (not to be confused with true buffalo ), is a species of bison that is endemic (or native) to North America . It is one of two extant species of bison, along with
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3318-470: The Ute Canyon Stock. Overlying these, and separated by an angular unconformity , are mostly horizontally bedded Mesozoic sedimentary rocks , including the cliff-forming Wingate Sandstone . Overlying these are various types of Quaternary unconsolidated deposits such as alluvium , colluvium , and dunes . The sedimentary rocks are folded into monoclines by several faults , including
3397-762: The Yellowstone Park bison herd, the Henry Mountains bison herd, which was started with bison taken from Yellowstone Park, the Wind Cave bison herd, and the Wood Buffalo National Park bison herd and subsidiary herds started from it, in Canada. A landmark study of bison genetics performed by James Derr of Texas A&M University corroborated this. The Derr study was undertaken in an attempt to determine what genetic problems bison might face as they repopulate former areas, and it noted that bison seem to be adapting successfully, despite their apparent genetic bottleneck. One possible explanation for this might be
3476-491: The animals, can be dangerous, and gunshots do not startle them. Between 1980 and 1999, more than three times as many people in Yellowstone National Park were injured by bison than by bears. During this period, bison charged and injured 79 people, with injuries ranging from goring puncture wounds and broken bones to bruises and abrasions. Bears injured 24 people during the same time. Three people died from
3555-400: The bison rapidly differentiated into new species , such as the largest of all bison, the long-horned Bison latifrons , along with Bison antiquus . The first appearance of bison in North America is considered to define the regional Rancholabrean faunal stage, due to its major impact on the ecology of the continent. Modern American bison are thought to have evolved from B. antiquus at
3634-472: The canyons to be inaccessible to humans. Otto began building trails on the plateau and into the canyons. As word spread about his work, the Chamber of Commerce of Grand Junction sent a delegation to investigate. The delegation returned praising both Otto's work and the scenic beauty of the wilderness area, and the local newspaper began lobbying to make it a National Park . A bill was introduced and carried by
3713-524: The case of males, it is unlikely to be related to dominance , but rather to social bonding or gaining sexual experience. Bison mate in late spring and summer in more open plain areas. During fall and winter, bison tend to gather in more wooded areas. During this time, bison partake in horning behaviors. They rub their horns against trees, young saplings, and even utility poles. Aromatic trees like cedars and pine seem to be preferred. Horning appears to be associated with insect defense, as it occurs most often in
3792-750: The early visitor facilities at Colorado National Monument were designed by the National Park Service and constructed by the Public Works Administration and the Civilian Conservation Corps . Several of these areas have been placed on the National Register of Historic Places in recognition of this and in consequence of their adherence to the National Park Service Rustic design standards of the time. The entire Rim Rock Drive
3871-657: The end of the Late Pleistocene - beginning of the Holocene , with likely intermediates between the species referred to as Bison "occidentalis" . The North American bison population experienced demographic stability during the Middle Holocene but began a slow decline in the Late Holocene beginning about 2,700 BP. Although they are superficially similar, the American and European bison exhibit
3950-596: The end of their first year. At three years of age, bison cows are mature enough to produce a calf. The birthing period for bison in boreal biomes is protracted compared to that of other northern ungulates, such as moose and caribou. Bison have a life expectancy around 15 years in the wild and up to 25 years in captivity. However, males and females from a hunted population also subject to wolf predation in northern Canada have been reported to live to 22 and 25 years of age, respectively. Bison have been observed to display homosexual behaviors , males much more so than females. In
4029-1223: The fall when the insect population is at its highest. Cedar and pines emit an aroma after bison horn them and this seems to be used as a deterrent for insects. A bison wallow is a shallow depression in the soil, which bison use either wet or dry. Bison roll in these depressions, covering themselves with dust or mud. Past and current hypotheses to explain the purpose of wallowing include grooming associated with shedding, male-male interaction (typically rutting ), social behavior for group cohesion, play, relief from skin irritation due to biting insects, reduction of ectoparasite ( tick and lice ) load, and thermoregulation . Bison wallowing has important ecosystem engineering effects and enhances plant and animal diversity on prairies. While often secure from predation because of their size and strength, in some areas, vulnerable individuals are regularly preyed upon by wolves . Wolf predation typically peaks in late winter, when elk migrates south and bison are distressed with heavy snows and shortages of food sources, with attacks usually being concentrated on weakened and injured cows and calves. Wolves more actively target herds with calves than those without. The length of
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#17327878325754108-472: The female offspring are fertile in the first generation. These female hybrids can be bred back to either bison or domestic bulls, resulting in either 1/4 or 3/4 bison young. Female offspring from this cross are also fertile, but males are not reliably fertile unless they are either 7 ⁄ 8 bison or 7 ⁄ 8 domestic. Moreover, when they do interbreed, crossbreed animals in the first generation tend to look very much like purebred bison, so appearance
4187-516: The females were fertile. The crossbred animals did not demonstrate any form of hybrid vigor , so the practice was abandoned. The proportion of cattle DNA that has been measured in introgressed individuals and bison herds today is typically quite low, ranging from 0.56 to 1.8%. In the United States , many ranchers are now using DNA testing to cull the residual cattle genetics from their bison herds. The U.S. National Bison Association has adopted
4266-500: The first 2–3 weeks of the season. More subordinate bulls mate with any remaining estrous cow that has not mated yet. Male bison play no part in raising the young. Bison herds have dominance hierarchies that exist for both males and females. A bison's dominance is related to its birth date. Bison born earlier in the breeding season are more likely to be larger and more dominant as adults. Thus, bison are able to pass on their dominance to their offspring as dominant bison breed earlier in
4345-404: The former was limited after the rediscovery of a relatively pure herd. Elk Island National Park, which has wild populations of both wood and plains bison, has recorded maximum weights for bull bison of 1186 kg (plains) and 1099 kg (wood), but noted that 3/4 of all bison over 1000 kg were wood bison. When raised in captivity and farmed for meat, the bison can grow unnaturally heavy and
4424-415: The injuries inflicted—one person by bison in 1983, and two people by bears in 1984 and 1986. A major problem that bison face today is a lack of genetic diversity due to the population bottleneck the species experienced during its near-extinction event. Another genetic issue is the entry of genes from domestic cattle into the bison population, through hybridization. Officially, the "American buffalo"
4503-593: The largest semidomestic bison weighed 1,724 kg (3,801 lb). The heads and forequarters are massive, and both sexes have short, curved horns that can grow up to 60 cm (2 ft) long with 90 cm (3 ft) to 124 cm (4 ft) width, which they use in fighting for status within the herd and for defense. Bison are herbivores , grazing on the grasses and sedges of the North American prairies . Their daily schedule involves two-hour periods of grazing, resting, and cud chewing, then moving to
4582-525: The local Representatives to the U.S. Congress and Senate but a Congressional slowdown in the final months threatened the process. To ensure protection of the canyons President William Howard Taft (who had visited the area) stepped in and used the highest powers available to him via the Antiquities Act and presidential proclamation to declare the canyons as a national monument. The area was established as Colorado National Monument on May 24, 1911. Otto
4661-410: The lowest weights probably representing typical weight around the age of sexual maturity at 2 to 3 years of age. The heaviest wild bull for B.b.bison ever recorded weighed 1,270 kg (2,800 lb) while there had been bulls estimated to be 1,400 kg (3,000 lb). B.b.athabascae is significantly larger and heavier on average than B.b.bison while the number of recorded samples for
4740-536: The mid-20th century, with a resurgence to roughly 31,000 wild bison as of March 2019. For many years, the population was primarily found in a few national parks and reserves. Through multiple reintroductions , the species now freely roams wild in several regions in the United States , Canada and Mexico . The American bison has also been introduced to Yakutia in Russia . Spanning back millennia , Native American tribes have had cultural and spiritual connections to
4819-810: The past, and opportunity for crossbreeding may sometimes have been common. In recent decades, tests were developed to determine the source of mitochondrial DNA in cattle and bison, and most private "buffalo" herds were actually crossbred with cattle, and even most state and federal buffalo herds had some cattle DNA. With the advent of nuclear microsatellite DNA testing, the number of herds known to contain cattle genes has increased. As of 2011, though about 500,000 bison existed on private ranches and in public herds, perhaps only 15,000 to 25,000 of these bison were pure and not actually bison-cattle hybrids. DNA from domestic cattle ( Bos taurus ) has been found in almost all examined bison herds. Significant public bison herds that do not appear to have hybridized domestic cattle genes are
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#17327878325754898-474: The process closer to fruition than any other representatives since the initial effort in 1907. The two Representatives appointed an 18-member committee of locals to study the issue and learn the facts in 2011. After a groundswell of support from local residents and business owners, the Representatives then appointed a committee of five local residents to write draft legislation. The draft legislation
4977-424: The rear of the herds to guard the cows' escape. Bison typically ignore wolves not displaying hunting behavior. Wolf packs specializing in bison tend to have more males because their larger size than females allows them to wrestle prey to the ground more effectively. Healthy, mature bulls in herds rarely fall prey. Grizzly bears are known to feed on carcass and may steal wolves' kills. While grizzlies can also pose
5056-560: The road was determined in November 1931 by National Park Service Engineer Thomas W. Secrest during a visit to the monument. The detailed design for the road was developed in 1932 by the National Park Service Branch of Engineering and Branch of Plans and Design for maximum scenic impact, using the National Park Service Rustic style. Most of the road was constructed with almost entirely manual labor by labor from
5135-486: The same Greek word boubalos we also get the Bubal hartebeest . Bison was borrowed from French bison in the early 17th century, from Latin bison ( aurochs ), from a Proto-Germanic word similar to wisent and, per Etymonline, first applied to American buffalo in the 1690s. In Plains Indian languages in general, male and female bison are distinguished, with each having a different designation rather than there being
5214-459: The season. In addition to dominance, the older bison of a generation also have a higher fertility rate than the younger ones. Bison mate in August and September; gestation is 285 days. A single reddish-brown calf nurses until the next calf is born. If the cow is not pregnant, a calf will nurse for 18 months. Cows nurse their calves for at least 7 or 8 months, but most calves seem to be weaned before
5293-487: The small amount of domestic cattle genes that are now in most bison populations, though this is not the only possible explanation for bison success. In the study, cattle genes were also found in small amounts throughout most national, state, and private herds. "The hybridization experiments conducted by some of the owners of the five foundation herds of the late 1800s, have left a legacy of a small amount of cattle genetics in many of our existing bison herds," said Derr. "All of
5372-477: The small size of only 12 individuals in the founder population. A side finding of this was that the Antelope Island bison herd appears to be most closely related to the Wood Buffalo National Park bison herd, though the Antelope Island bison are actually plains bison. In order to bolster the genetic diversity of the American bison, the National Park Service alongside the Department of the Interior announced
5451-849: The smaller range of sizes, and wood bison in the larger range. Head-rump lengths at maximum up to 3.5 m (11 ft 6 in) for males and 2.85 m (9 ft 4 in) for females long and the tail adding 30 to 95 cm (1 ft 0 in to 3 ft 1 in). Heights at withers in the species can reach up to 186 to 201 cm (6 ft 1 in to 6 ft 7 in) for B. b. bison and B. b. athabascae respectively. Typically weights can range from 318 to 1,179 kg (701 to 2,599 lb), 460 to 988 kg (1,014 to 2,178 lb) with medians of 730 to 792.5 kg (1,609 to 1,747 lb) ( B.b. bison ) and 943.6 kg (2,080 lb) ( B.b.athabascae ) in males, and 360 to 640 kg (790 to 1,410 lb) with medians of 450 to 497.6 kg (992 to 1,097 lb) in females, although
5530-516: The state owned bison herds tested (except for possibly one) contain animals with domestic cattle mtDNA." It appears that the one state herd that had no cattle genes was the Henry Mountains bison herd; the Henry Mountain herd was started initially with transplanted animals from Yellowstone Park. However, the extension of this herd into the Book Cliffs of central Utah involved mixing the founders with additional bison from another source, so it
5609-729: The summer. In the Hayden Valley, Wyoming, bison have been recorded traveling, on average, 3 km (2 mi) per day. The summer ranges of bison appear to be influenced by seasonal vegetation changes, interspersion and size of foraging sites, the rut , and the number of biting insects. The size of preserve and availability of water may also be a factor. Bison are largely grazers, eating primarily grasses and sedges. On shortgrass pasture, bison predominately consume warm-season grasses. On mixed prairie, cool-season grasses, including some sedges, apparently compose 79–96% of their diet. In montane and northern areas, sedges are selected throughout
5688-684: The time-obliterated paths of mastodon or muskox and the routes of the mound builders , were the traces made by bison and deer in seasonal migration and between feeding grounds and salt licks . Many of these routes, hammered by countless hoofs instinctively following watersheds and the crests of ridges in avoidance of lower places' summer muck and winter snowdrifts, were followed by the aboriginal North Americans as courses to hunting grounds and as warriors' paths. They were invaluable to explorers and were adopted by pioneers . Bison traces were characteristically north and south, but several key east–west trails were used later as railways. Some of these include
5767-488: The total to three. However, this is generally not supported. The wood bison is one of the largest wild species of extant bovid in the world, surpassed only by the Asian gaur . Among extant land animals in North America, the bison is the heaviest and the longest, and the second tallest after the moose . Once roaming in vast herds , the species nearly became extinct by a combination of commercial hunting and slaughter in
5846-445: The tribe Bovini . Genetic evidence from nuclear DNA indicates that the closest living relatives of bison are yaks , with bison being nested within the genus Bos , rendering Bos without including bison paraphyletic . While nuclear DNA indicates that the two living bison species are each other's closest living relatives, the mitochondrial DNA of European bison is more closely related to that of domestic cattle and aurochs , which
5925-441: The year. Bison also drink water or consume snow on a daily basis. Female bison live in maternal herds which include other females and their offspring. Male offspring leave their maternal herd when around three years old and either live alone or join other males in bachelor herds. Male and female herds usually do not mingle until the breeding season, which can occur from July through September. However, female herds may also contain
6004-487: Was announced and released in early 2014. A public comment period on the draft legislation began soon after with an end date of June 29. Documentary producer Ken Burns ( National Parks: America's Best Idea ) weighed in of the effort, endorsing national park status for the Colorado National Monument. Burns compared the area to Seward, Alaska, which overcame opposition to create Kenai Fjords National Park. Burns said Seward locals came to refer to Kenai Fjords National Park as
6083-658: Was applied in the 1690s. Buffalo was applied to the American bison by Samuel de Champlain as the French word buffles in 1616 (published 1619), after seeing skins and a drawing. These were shown to him by members of the Nipissing First Nation , who said they traveled forty days (from east of Lake Huron) to trade with another nation who hunted the animals. Buffel in turn comes from Portuguese bufalo (water buffalo), which comes from Latin bufalus (an antelope, gazelle, or wild ox), from Greek boubalos . From
6162-454: Was hired as the first park ranger, drawing a salary of $ 1 per month. For the next 16 years, he continued building and maintaining trails while living in a tent in the park. A herd of bison was introduced and maintained from 1925 to 1983. After a failed effort to introduce elk, Otto obtained two cows and one bull. The herd grew to as many as 45 animals, but generally the herd was kept at about 20-25 animals. The park became more well known in
6241-461: Was that of the expected "wood buffalo". However, the Yellowstone Park bison herd was pure plains bison, and not any of the other previously suggested subspecies. Another finding was that the bison in the Antelope Island herd in Utah appeared to be more distantly related to other plains bison in general than any other plains bison group that was tested, though this might be due to genetic drift caused by
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